Copy remoting notification bar to chrome and use it for screen capture API.

chrome/browser/ui/cocoa/screen_capture_notification_ui_cocoa.h

+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#import <Cocoa/Cocoa.h>
+
+#include <string>
+
+#include "base/callback.h"
+#include "base/string16.h"
+#include "chrome/browser/ui/screen_capture_notification_ui.h"
+
+// Controller for the screen capture notification window which allows the user
+// to quickly stop screen capturing.
+@interface ScreenCaptureNotificationController : NSWindowController {
+ @private
+  base::Closure stop_callback_;
+  string16 title_;
+  IBOutlet NSTextField* statusField_;
+  IBOutlet NSButton* stopButton_;
+}
+
+- (id)initWithCallback:(const base::Closure&)stop_callback
+                 title:(const string16&)title;
+- (IBAction)stopSharing:(id)sender;
+@end
+
+// A floating window with a custom border. The custom border and background
+// content is defined by DisconnectView. Declared here so that it can be
+// instantiated via a xib.
+@interface ScreenCaptureNotificationWindow : NSWindow
+@end
+
+// The custom background/border for the ScreenCaptureNotificationWindow.
+// Declared here so that it can be instantiated via a xib.
+@interface ScreenCaptureNotificationView : NSView
+@end